PHP: Sort Object Array [duplicate]

Question

So lets say I have this:

<?php
    $obj=(object)array("this"=>"that","and"=>"the","other"=>(object)array("layers"=>"make","things"=>"more","fun"=>(object)array("every"=>"time","foo"=>"bar")));
    var_dump($obj);
?>

which outputs this:

object(stdClass)#3 (3) {
  ["this"]=>
  string(4) "that"
  ["and"]=>
  string(3) "the"
  ["other"]=>
  object(stdClass)#2 (3) {
    ["layers"]=>
    string(4) "make"
    ["things"]=>
    string(4) "more"
    ["fun"]=>
    object(stdClass)#1 (2) {
      ["every"]=>
      string(4) "time"
      ["foo"]=>
      string(3) "bar"
    }
  }
}

But I want it sorted by keys like this preferably without having to make a array or ever layer of keys and sort it and rebuilding the object in order like this:

object(stdClass)#3 (3) {
  ["and"]=>
  string(4) "the"
  ["other"]=>
  object(stdClass)#2 (3) {
    ["fun"]=>
    object(stdClass)#1 (2) {
      ["every"]=>
      string(4) "time"
      ["foo"]=>
      string(3) "bar"
    }
    ["layers"]=>
    string(4) "make"
    ["things"]=>
    string(4) "more"
  }
  ["this"]=>
  string(3) "that"
}

I think web browsers will do this sorting automatically as I seem to recall having to workaround this when I had a custom sorting feature I made break some years ago in firfox, so I could just json_encode it and let the client handle this part so the browser will just sort it with no sorting effort on my part

You need to do it before casting your array into an object. — Jeto
– Jeto, Commented Nov 28, 2020 at 18:39

ybenhssaien · Accepted Answer · 2020-11-28 16:23:42Z

0

// Just sort and return the sorted array
function array_ksort(array $array) {
    ksort($array);
    return $array;
}

$obj = (object) array_ksort(array_map(function($value) { return !is_object($value) ? $value : (object) array_ksort((array) $value);}, $obj));

Check result here : https://3v4l.org/2hZsB

answered Nov 28, 2020 at 16:23

ybenhssaien

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4 Comments

GM-Script-Writer-62850 Over a year ago

Did I try it wrong? pastebin.com/0jGDeNA9 (tested in terminal)

ybenhssaien Over a year ago

you had to cast $obj in the second var_dump here is the right version :

<?php function array_ksort(array $array) {     ksort($array);     return $array; } 	$obj=(object)array("this"=>"that","and"=>"the","other"=>(object)array("layers"=>"make","things"=>"more","fun"=>(object)array("every"=>"time","foo"=>"bar"))); 	var_dump($obj); 	$obj = (object) array_ksort(array_map(function($value) { return !is_object($value) ? $value : (object) array_ksort((array) $value);}, (array) $obj)); 	var_dump($obj); ?>

GM-Script-Writer-62850 Over a year ago

Thanks, that looks to work; though I rewrote the code in JS already and still had to sort it...

GM-Script-Writer-62850 Over a year ago

Correction seems to not sort 100% properly with real data at least in layer 3, this was how i did it: pastebin.com/gVqQeQbx

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